angle of incidence - Angle between an incoming light ray and the normal., angle of reflection - The angle between the normal and the ray of light leaving a mirror., incident ray - ray of light going towards the mirror or other object., normal - An imaginary line at right angles to the surface of a mirror other object where a ray of light hits it., plane mirror - A smooth, flat mirror., ray diagram - A diagram showing the passage of light rays., reflected ray - A ray of light bouncing off a mirror., scatter - Spread out in all directions.,

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